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Inorganic fertilizers - Determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea)
Translate name
STANDARD published on 1.8.2024
Designation standards: ČSN EN 17864
Classification mark: 654955
Catalog number: 519672
Publication date standards: 1.8.2024
SKU: NS-1192866
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
Tento dokument specifikuje metodu pro stanovení obsahu dusíku ve formě IBDU (isobutylidendimočovina) a CDU (krotonylidendimočovina) s využitím vysokoúčinné kapalinové chromatografie (HPLC).
Metoda je použitelná pro všechna hnojiva, která neobsahují rušivé organické sloučeniny.
Vzorek se extrahuje vodou a po vhodném zředění se analyzuje s pomocí vhodného HPLC systému
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